Abu Ahmad ibn Adi al-Jurjani: There are some reservations about his narrations, but he is famous for his interpretations
Abu Bakr al-Bayhaqi: Not relied upon
Abu Hatim ibn Hibban al-Busti: He did not meet any of the companions of the Messenger of Allah, peace and blessings be upon him, and whoever claimed that he met Ibn Abbas is mistaken
Abu Zar'ah al-Razi: Trustworthy
Ahmad ibn Hanbal: Trustworthy, Reliable
Ahmad ibn Salih al-Jili: Trustworthy
Ibn Hajar al-'Asqalani: Truthful, frequently narrates with ارسال (Irsal)
Al-Daraqutni: Trustworthy
Shu'bah ibn al-Hajjaj: He would not narrate from him, and he would deny that he met Ibn Abbas
Yahya ibn Sa'id al-Qattan: He was considered weak by us
Yahya ibn Ma'in: Trustworthy